drm/cirrus: Use offset-adjusted shadow-plane mappings

For framebuffers with non-zero offset fields, shadow-plane helpers
provide a pointer to the first byte of the contained data. Use it in
cirrus.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210803125928.27780-7-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
index a8b476a..4611ec4 100644 (file)
--- a/drivers/gpu/drm/tiny/cirrus.c
+++ b/drivers/gpu/drm/tiny/cirrus.c
@@ -435,7 +435,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
        struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
 
        cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
-       cirrus_fb_blit_fullscreen(plane_state->fb, &shadow_plane_state->map[0]);
+       cirrus_fb_blit_fullscreen(plane_state->fb, &shadow_plane_state->data[0]);
 }
 
 static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
@@ -451,7 +451,7 @@ static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
                cirrus_mode_set(cirrus, &crtc->mode, state->fb);
 
        if (drm_atomic_helper_damage_merged(old_state, state, &rect))
-               cirrus_fb_blit_rect(state->fb, &shadow_plane_state->map[0], &rect);
+               cirrus_fb_blit_rect(state->fb, &shadow_plane_state->data[0], &rect);
 }
 
 static const struct drm_simple_display_pipe_funcs cirrus_pipe_funcs = {